Releasable film-forming agent and method for releasing and removing stains

Abstract

To provide a releasable film-forming agent and a method for releasing and removing stains, capable of removing the stain especially attached to a collar, a cuff or the like of shirts.SOLUTION: A releasable film-forming agent comprises at least water, polyvinyl alcohol, and a mineral oil or paraffin wax. The releasable film-forming agent further comprises a polyoxyalkylene alkyl ether. The releasable film-forming agent further comprises hydrophilic silica or polymethyl methacrylate. The releasable film-forming agent further comprises silicate. The releasable film-forming agent is a releasable film-forming agent for clothing. A method for releasing and removing stains includes: applying the releasable film-forming agent to clothing to form a releasable film; and releasing and removing the stain attached to the releasable film along with the releasable film itself.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a peelable film-forming agent and a method for peeling and removing dirt, and more particularly to a peelable film-forming agent used for removing dirt from clothing, particularly capable of removing dirt adhering to the collars, cuffs, etc. of shirts, and a method for peeling and removing dirt. [Background technology]

[0002] Traditionally, the collars and cuffs of clothing, especially dress shirts, have been particularly susceptible to staining, and if the shirt is worn for a long time without any treatment, the stains will become darker, which can give an unpleasant impression to people who see it. The area around the collar is prone to rubbing against the skin of the neck and shoulders, causing sebum to soak deep into the fibers of the shirt. In particular, people who sweat easily have active sebum secretion, so the collar area is prone to yellowing. In addition, cosmetics such as hair styling products and foundations that get on the collar can also cause yellowing. The yellowing can be caused by oxidation when exposed to ultraviolet rays and air, making the color darker and worsening.

[0003] Patent Document 1 discloses a disposable patch that prevents stains on shirt collars and cuffs and reduces damage to the fabric. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-303227 A Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 describes a disposable patch for preventing stains on collars and cuffs that is attached to the collars of shirts, jackets, etc., and therefore prevents sweat and stains on the collars and cuffs, does not damage the fabric and lasts a long time, and because the dirty patch is disposable, it can be removed to maintain a comfortable fit. However, the patch must be prepared in advance to fit the shape of the collar and cuffs of the shirt to be used, or the user must cut it to fit the shape of the shirt to be used, which is time-consuming. In addition, the patch is bulky, making the area around the collar and cuffs uncomfortable, and the process of applying an adhesive to the back of the patch is difficult. [Means for solving the problem]

[0006] The first invention, which has been made to solve the above problems, provides a peelable coating agent characterized by comprising at least water, polyvinyl alcohol, and mineral oil or paraffin wax.

[0007] A second aspect of the present invention is the peelable coating agent according to the first aspect of the present invention, further comprising a polyoxyalkylene alkyl ether.

[0008] A third invention is the peelable coating agent according to the second invention, further comprising hydrophilic silica or polymethyl methacrylate.

[0009] A fourth aspect of the present invention is the peelable coating-forming agent according to the third aspect of the present invention, further comprising a silicate.

[0010] A fifth invention relates to a peelable coating agent according to any one of the first to fourth inventions, characterized in that the peelable coating agent is a wearable peelable coating agent.

[0011] The sixth invention is a method for peeling and removing dirt, which comprises applying the peelable coating-forming agent described in the fifth invention to clothing to form a peelable coating, and peeling and removing dirt adhering to the peelable coating together with the peelable coating. Effect of the Invention

[0012] The first invention is a peelable coating agent characterized by at least blending water, polyvinyl alcohol, and mineral oil or paraffin wax, and therefore can prevent dirt from being deposited on the surface of an article to which dirt is easily attached, and can peel off and remove the dirty peelable coating. If it is desired to form a peelable coating again, it can be repeatedly used by reapplying it. In addition, since the peelable coating can be formed by application, it is not necessary to prepare it in advance according to the shape of the article surface, or to cut it according to the shape of the application by the user, and it is extremely convenient because the user can determine the desired location, shape, range, etc. each time it is used.

[0013] The second invention is a peelable coating agent characterized by further containing polyoxyalkylene alkyl ether, so that a uniform coating can be formed and peelability is improved.

[0014] The third invention is a peelable coating agent characterized by further containing hydrophilic silica or polymethyl methacrylate, which suppresses adhesion to articles and improves peelability.

[0015] The fourth invention further relates to a release coating agent characterized by containing a silicate, and therefore the thixotropic effect is achieved, which inhibits penetration into articles and improves release properties.

[0016] The fifth invention is characterized in that the peelable film-forming agent is a peelable film-forming agent for clothing, so that it prevents dirt on the collar and cuffs of clothing such as a dress shirt, does not damage the fabric and lasts a long time, and the dirty peelable film can be peeled off and removed. If it is desired to form a peelable film again, it can be reapplied to repeatedly maintain a comfortable fit.

[0017] The sixth invention is a method for peeling and removing dirt, characterized in that a peelable coating is applied to clothing to form a peelable coating, and dirt attached to the peelable coating is peeled and removed together with the peelable coating. Therefore, there is no need to prepare a patch or the like in advance to match the shape of the collar or cuff of the shirt to be used, or for the user to cut it to match the shape of the shirt to be used. The user can determine the desired location, shape, range, etc. each time it is used, which is extremely convenient. In addition, the peelable coating can be formed into a thin film (about 0.01 mm to 0.04 mm), so the collar and cuffs do not become cramped or are not noticeable in appearance. Since the peelable coating agent is a liquid, there is no need to prepare a patch or the like or to carry out troublesome processes such as applying an adhesive part to the back. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The present invention will be described in detail below. In the present invention, the term "article" refers to an object whose surface is easily soiled, such as a ventilator, a gas range, a toilet, clothing, etc. Clothing refers to, for example, dress shirts, blouses, polo shirts, and other dress shirts, children's clothes, work clothes, suits, skirts, pants, and other Western clothing, underwear, Japanese clothing, gloves, scarves, ties, helmets, hats, footwear, etc.

[0019] Water is used as a solvent. For example, tap water, distilled water, purified water, pure water, well water, soft water, hard water, etc. may be used. The amount of water used is preferably 60 to 80% by weight based on the total amount of the peelable film-forming agent. In particular, in the case of a peelable film-forming agent for clothing, water with high surface tension is used to suppress penetration into clothing. In addition, an alcohol-based solvent or a polyhydric alcohol can be appropriately blended. As the alcohol-based solvent, alcohols such as butyl alcohol, ethyl alcohol, and propyl alcohol can be used. As the polyhydric alcohol, taking into consideration volatility, dye solubility, bleeding prevention, etc., ethylene glycol, propylene glycol, butylene glycol, pentyl glycol, hexyl glycol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, glycerin, diethanolamine, triethanolamine, and other polyhydric alcohols can be used, and these can be used alone or in combination of two or more.

[0020] Polyvinyl alcohol is used as a water-based film-forming agent. Polyvinyl alcohol (PVA) is a polymeric compound obtained by saponifying polyvinyl acetate with an alkali, acid, aqueous ammonia, or the like. The peelable coating agent may be any of partially saponified, intermediately saponified, and fully saponified types, with a saponification degree of 86.5 to 99.0 mol%. Of these, the peelable coating agent is preferably a partially saponified type with a saponification degree of 86.5 to 89.5 mol%. The average polymerization degree is preferably about 1000 to 4500, and more preferably about 1500 to 3000. Specifically, the partially saponified type includes JP-20 (saponification degree 87.0-89.0 mol%, polymerization degree about 2000), JP-33 (saponification degree 86.5-89.5 mol%, polymerization degree about 3300), JP-45 (saponification degree 86.5-89.5 mol%, polymerization degree about 4500), the intermediate saponified type includes JM-23 (saponification degree 96.0-98.0 mol%, polymerization degree about 2300), and the fully saponified type includes JC-25 (saponification degree 99.0 mol% or more, polymerization degree about 2500), JF-20 (saponification degree 98.0-99.0 mol%, polymerization degree about 2000) (all manufactured by Nippon Vinyl Acetate & Poval Co., Ltd.), which may be used alone or in combination of two or more. The amount of use is preferably 10-20% by weight based on the total amount of the peelable coating agent.

[0021] Mineral oil or paraffin wax is used as a release agent for removing from articles. Specifically, mineral oil, white mineral oil, liquid paraffin, etc. can be used. Emulsion may be used to disperse in water. The amount used is preferably 5 to 10% by weight based on the total amount of the release coating agent.

[0022] Polyoxyalkylene alkyl ether is used as a film forming auxiliary. Among them, polyoxyalkylene alkyl ether type nonionic surfactants are preferred, and are necessary for forming a uniform film together with the polyvinyl alcohol. Specifically, examples of polyoxyethylene oleyl ether include Noigen ET60E, Noigen ET80E, Noigen ET100E, Noigen ET69, and Noigen ET89, and examples of polyoxyethylene lauryl ether include Noigen ET83 and Noigen ET102 (all manufactured by Daiichi Kogyo Seiyaku Co., Ltd.). The amount of use is preferably 1 to 3% by weight based on the total amount of the peelable film forming agent.

[0023] Furthermore, hydrophilic silica or polymethylmethacrylate can be blended as an antiblocking agent. The antiblocking agent has the effect of reducing contact points by the unevenness of the fine particles, suppressing adhesion of the peelable coating to the article, and improving peelability. Specifically, an example of hydrophilic silica is Hautform Silbol-S260 (average particle size 260 nm, manufactured by Fuji Chemical Co., Ltd.), and an example of crosslinked polymethylmethacrylate is Techpolymer MBX-5 (average particle size 5 μm) or Techpolymer SSX-105 (average particle size 5 μm) (both manufactured by Sekisui Chemical Co., Ltd.). The amount of use is preferably 3 to 10% by weight based on the total amount of the peelable coating agent.

[0024] Furthermore, silicate can be blended as a thixotropy-imparting agent. By imparting thixotropy, it is possible to suppress the penetration into clothing among other articles and improve the peelability. Specifically, examples of magnesium aluminum silicate include Sumecton SA, Sumecton ST, and Sumecton SEN (all manufactured by Kunimine Industries Co., Ltd.), and LAPONITE RDS (manufactured by BYK Japan Co., Ltd.). The amount of use is preferably 0.5 to 3% by weight based on the total amount of the peelable coating agent.

[0025] Furthermore, in the present invention, antiseptics, antifungals, stabilizers, viscosity adjusters, surfactants, pH adjusters, fragrances, etc. may be appropriately blended. EXAMPLES

[0026] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples. Table 1 shows the compositions of the peelable coating agents of Examples 1 to 5 and Comparative Examples 1 to 3. [Table 1] The materials used in the table are as follows: Polyvinyl alcohol: JP-20 (manufactured by Nippon Vaccination & Poval Co., Ltd.) Carboxy modified latex: Nalstar MR-171 (manufactured by Nippon A&L Co., Ltd.) Ethyl cellulose: Ethocel STD10 (manufactured by Nisshin Chemical Industry Co., Ltd.) Polyoxyethylene oleyl ether: Noigen ET60E (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) Polymethylmethacrylate: Techpolymer MBX-5 (manufactured by Sekisui Plastics Co., Ltd.) Hydrophilic silica: Houtform Silbol-S260 (manufactured by Fuji Chemical Co., Ltd.) Magnesium aluminum silicate: Sumecton SA (Kunimine Industries Co., Ltd.)

[0027] Table 1 also shows the results of tests carried out under the following conditions for the examples and comparative examples. ■ Temporal stability test of film-forming agents (Test Method) The peelable coating agents of the Examples and Comparative Examples were placed in glass bottles, and the presence or absence of separation was visually confirmed after 7 days at room temperature. (How to check results) ◯: No separation. ×: Separation. ■ Peelability test (Test Method) The peelable coating forming agents of Examples 1 to 5 and Comparative Examples 2 and 3 are uniformly applied to the collar of a dress shirt (material: polyester) using a hand coater, and left at 50°C for 30 minutes to form a peelable coating. After confirming the formation of the coating, the shirt is worn for 5 hours and stains adhering to the coating are confirmed. After checking the stains, the peelability of the peelable coating is confirmed. Also, the removal of stains from the collar after peeling is confirmed. (How to check results) : The peelable coating was easily peeled off and dirt was also removed. ◯: The peelable coating could be peeled off and dirt could be removed. ×: The peelable coating could not be peeled off, and dirt could not be removed. The coating was torn.

[0028] As is clear from Table 1, the peelable coating-forming agent containing water, polyvinyl alcohol, and mineral oil (Example 1) and the peelable coating-forming agent containing polyoxyethylene oleyl ether (Example 2) formed peelable coatings, and dirt that had adhered after five hours of wear could be peeled off and removed from the collar of a dress shirt together with the peelable coating. In addition, the peelable film-forming agent containing polymethyl methacrylate and magnesium aluminum silicate (Examples 3 and 5) formed a peelable film, and dirt that had adhered after five hours of wear could be easily peeled off and removed from the collar of a dress shirt together with the peelable film. In addition, the peelable film-forming agent containing hydrophilic silica (Example 4) also formed a peelable film, and dirt that had adhered after five hours of wear could be easily peeled off and removed from the collar of a dress shirt together with the peelable film.

[0029] On the other hand, the peelable film-forming agent (Comparative Example 1) containing carboxy-modified latex instead of polyvinyl alcohol separated after 7 days at room temperature, and the film-forming agent had poor stability over time. The peelable film-forming agent (Comparative Example 2) containing ethyl cellulose instead of polyvinyl alcohol and the peelable film-forming agent (Comparative Example 3) containing only polyoxyethylene oleyl ether instead of mineral oil had good stability over time, but in the peelability test, when peeled from the shirt after wearing for 5 hours, the film tore and the peelable film could not be peeled off, and the dirt could not be removed.

[0030] The present invention has been described above in relation to the embodiment that is considered to be the most practical and preferable at present, however, the present invention is not limited to the embodiment disclosed in the specification of this application, and may be modified as appropriate within the scope of the claims and the gist or concept of the invention that can be read from the entire specification, and it should be understood that the peelable coating-forming agent and the method for peeling and removing dirt that involve such modifications are also included within the technical scope.

Claims

1. Water, Polyvinyl alcohol, Mineral oil or paraffin wax; A peelable coating agent comprising at least one of the following:

2. 2. The peelable coating agent according to claim 1, further comprising a polyoxyalkylene alkyl ether.

3. 3. The peelable coating agent according to claim 2, further comprising hydrophilic silica or polymethyl methacrylate.

4. 4. The peelable coating agent according to claim 3, further comprising a silicate.

5. 5. The peelable coating agent according to claim 1, wherein the peelable coating agent is a wearable peelable coating agent.

6. 6. A method for peeling and removing dirt, comprising applying the peelable coating agent according to claim 5 to clothes to form a peelable coating, and peeling and removing dirt adhering to said peelable coating together with said peelable coating.

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